In ColdFusion 2016 API Manager, you can use a Redis cluster as your datastore.

Using the Redis cluster, you can scale API Manager by adding or removing Redis nodes and manage automatic failover by creating slaves.

This is independent of your API Manager cluster.

A Redis cluster requires at least three master nodes. We recommend creating three corresponding slave nodes for better availability and reliability.

Creating a Redis cluster involves installing individual Redis nodes that will become a part of the cluster. The next step involves adding the nodes to the cluster and providing the Redis cluster information to API Manager.